I am looking at building a computer. I've seen some people say that AMD is better and some people have said Intel is better for AutCAD Civil 3D.The two I was looking at are the Intel Core i7 and the AMD Phenom x4.Any input or advice is appreciated.

You can find many good CPU models in both families. There is no clear preference.

I have read the discussion and I want to post another question. I will buy a labtop with ATI Radeon HD 4570 graphic card, and I am wondering if that fits with the autodesk programs (such as 3D MAX).thanks.

I've had both AMD and Intel, both seem to work fine. I've never noticed any difference.
Memory and HDD capacity make a difference.
Video, dedicated, is certainly a +++.Tankman2009-12-12 23:17:04